Experiences and language skills lead to more complex concepts.
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Emmy kicks a soccer ball up at an angle of 45° over a level field. she watches the ball's trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. assume that air resistance is negligible, and plot the horizontal and vertical components of the ball's velocity as a function of time. consider only the time that the ball is in the air, after being kicked but before landing. take "north" and "up" as the positive ‑ and ‑directions, respectively, and use ≈10 m/s2 for the downward acceleration due to gravity.

Awhite-blue star is hotter than a red star. select the best answer from the choices provided true or false

When you hold a rectangular object, how does the area of the side that is resting on your hand affect the pressure and the force that the object exerts?